Starlight spotlights w/ volume help
There is several ways to get this effect ... but in your example are mixed two light effects. One is vertical lights from stars and second light scattering fromcentral light source. So here are some tips.
SunBeam (postpro)

enable Compositor
use SunBeam node with high Y value to get effect of light comming from top
it depence on image, but sometimes you will need to do a pass for stars if there is some another bright source of light (or for masking reason foreground-background)




Glare (postpro)
similar way is to use Glare node &gt; Streaks &gt; 2

Volumetric
For light scattering

add Cube with Principled Volume shader



For vertical light rays comming from top you can use Volumetric material, but without connection with stars on sky.

use 2D Noise texture node for vertical rays
add Areal light on top